{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "The patients ' characteristics ( sex , age , body mass index [ BMI ] , Karnofsky performance status , \" time since starting opioids \" , \" oxycodone total daily dose \" , \" time from last oxycodone dose \" , use of CYP3A4 inducer / inhibitor , \" use of systemic steroids \" , \" number of medications taken in the last 24 h \" , glomerular filtration rate ( GFR ) and albumin serum concentrations ) influence on oxycodone serum concentrations or metabolite / oxycodone ratios were explored by multiple regression analyses ."}
{"Anatomy": ["body", "glomerular", "serum"]}